<template>
  <i v-if="isShowIconSvg" class="el-icon" :style="setIconSvgStyle">
    <component :is="getIconName" />
  </i>
  <div v-else-if="isShowIconImg" :style="setIconImgOutStyle">
    <img :src="getIconName" :style="setIconSvgInsStyle" />
  </div>
  <i v-else :class="getIconName" :style="setIconSvgStyle" />
</template>

<script setup lang="ts" name="svgIcon">
import { computed } from "vue"

// 定义父组件传过来的值
const props = defineProps({
  // svg 图标组件名字
  name: {
    type: String
  },
  // svg 大小
  size: {
    type: Number,
    default: () => 14
  },
  // svg 颜色
  color: {
    type: String
  }
})

// 在线链接、本地引入地址前缀
// https://gitee.com/lyt-top/vue-next-admin/issues/I62OVL
const linesString = ["https", "http", "/src", "/assets", "data:image", ""]

// 获取 icon 图标名称
const getIconName = computed(() => {
  return props?.name
})
// 用于判断 element plus 自带 svg 图标的显示、隐藏
const isShowIconSvg = computed(() => {
  return props?.name?.startsWith("ele-")
})
// 用于判断在线链接、本地引入等图标显示、隐藏
const isShowIconImg = computed(() => {
  return linesString.find((str) => props.name?.startsWith(str))
})
// 设置图标样式
const setIconSvgStyle = computed(() => {
  return `font-size: ${props.size}px;color: ${props.color};`
})
// 设置图片样式
const setIconImgOutStyle = computed(() => {
  return `width: ${props.size}px;height: ${props.size}px;display: inline-block;overflow: hidden;`
})
// 设置图片样式
// https://gitee.com/lyt-top/vue-next-admin/issues/I59ND0
const setIconSvgInsStyle = computed(() => {
  const filterStyle: string[] = []
  const compatibles: string[] = ["-webkit", "-ms", "-o", "-moz"]
  compatibles.forEach((j) => filterStyle.push(`${j}-filter: drop-shadow(${props.color} 30px 0);`))
  return `width: ${props.size}px;height: ${props.size}px;position: relative;left: -${props.size}px;${filterStyle.join(
    ""
  )}`
})
</script>
